Round|Natural|GIA

1.51ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 7553158400

Certificate GIA 7553158400

Diamond specifications and retailer prices

From $7,358 USD
Save $6,330 USD (46%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $13,688 USD at MOH London
View at MOH London

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7553158400. Listed at 17 retailers, with prices from $7,358 to $13,688 at MOH London, a $6,330 spread on the same certified stone. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 7553158400
Dimensions7.31 × 7.28 × 4.56 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
7.31 mm7.28 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7553158400
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 1
Current: $13,688 USD|Low: $7,077 USD|High: $13,688 USD|Avg: $9,667 USD|+1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 1, 2026
Retailer 8$7,077 USD
Retailer 10$8,075 USD
Retailer 11$9,006 USD
Retailer 2$9,014 USD
Retailer 7$9,110 USD
Retailer 3$9,620 USD
Retailer 4$9,620 USD
Retailer 6$9,896 USD
Retailer 12$9,940 USD
Retailer 9$10,685 USD
Retailer 5$11,701 USD
MOH London$13,688 USD

31 data points across 12 retailers

17 retailers$7,358 USD to $13,688 USD

B+
Cheapest Retailer
-
$7,358 USD
B+
Retailer 2
-
$7,599 USD
View
B+
Retailer 3
-
$7,816 USD
View
B+
Retailer 4
-
$7,975 USD
CA$11,077 CAD
View
B+
Retailer 5
-
$8,075 USD
View
B
Retailer 6
-
$9,006 USD
View
B+
Retailer 7
-
$9,014 USD
A$13,868 AUD
View
B
Retailer 8
-
$9,094 USD
£7,161 GBP
View
B+
Retailer 9
-
$9,327 USD
View
B+
Retailer 10
-
$9,620 USD
View
Price last confirmed 13 days ago
B+
Retailer 11
-
$9,620 USD
View
B+
Retailer 12
-
$9,896 USD
€9,425 EUR
View
B
Retailer 13
-
$9,940 USD
View
Price last confirmed 11 days ago
B
Retailer 14
-
$10,356 USD
View
B
Retailer 15
-
$10,685 USD
View
B
Retailer 16
-
$11,701 USD
ZAR 189,035 ZAR
View
Most Expensive
B
MOH London
F04D292F4 · Oct 1
$13,688 USD
£10,778 GBP
View
16 more retailers have this diamond
Prices start from $7,358 USDSave up to $6,330 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing.

B+
1.51ct Round
$7,358 USD